Maintenance.

vendor/qrcode_UTF8.js

@@ -0,0 +1,59 @@
+//---------------------------------------------------------------------
+//
+// QR Code Generator for JavaScript UTF8 Support (optional)
+//
+// Copyright (c) 2011 Kazuhiko Arase
+//
+// URL: http://www.d-project.com/
+//
+// Licensed under the MIT license:
+//  http://www.opensource.org/licenses/mit-license.php
+//
+// The word 'QR Code' is registered trademark of
+// DENSO WAVE INCORPORATED
+//  http://www.denso-wave.com/qrcode/faqpatent-e.html
+//
+//---------------------------------------------------------------------
+
+!function(qrcode) {
+
+  //---------------------------------------------------------------------
+  // overwrite qrcode.stringToBytes
+  //---------------------------------------------------------------------
+
+  qrcode.stringToBytes = function(s) {
+    // http://stackoverflow.com/questions/18729405/how-to-convert-utf8-string-to-byte-array
+    function toUTF8Array(str) {
+      var utf8 = [];
+      for (var i=0; i < str.length; i++) {
+        var charcode = str.charCodeAt(i);
+        if (charcode < 0x80) utf8.push(charcode);
+        else if (charcode < 0x800) {
+          utf8.push(0xc0 | (charcode >> 6),
+              0x80 | (charcode & 0x3f));
+        }
+        else if (charcode < 0xd800 || charcode >= 0xe000) {
+          utf8.push(0xe0 | (charcode >> 12),
+              0x80 | ((charcode>>6) & 0x3f),
+              0x80 | (charcode & 0x3f));
+        }
+        // surrogate pair
+        else {
+          i++;
+          // UTF-16 encodes 0x10000-0x10FFFF by
+          // subtracting 0x10000 and splitting the
+          // 20 bits of 0x0-0xFFFFF into two halves
+          charcode = 0x10000 + (((charcode & 0x3ff)<<10)
+            | (str.charCodeAt(i) & 0x3ff));
+          utf8.push(0xf0 | (charcode >>18),
+              0x80 | ((charcode>>12) & 0x3f),
+              0x80 | ((charcode>>6) & 0x3f),
+              0x80 | (charcode & 0x3f));
+        }
+      }
+      return utf8;
+    }
+    return toUTF8Array(s);
+  };
+
+}(qrcode);